The Big Bang Theory

“The Decoupling Fluctuation” – When Sheldon learns that Penny is thinking about breaking up with Leonard, he tries to intervene. Meanwhile, in space, the other astronauts pick on Howard, on THE BIG BANG THEORY, Thursday, April 18 (8:00 - 8:31 PM, ET/PT) on the CBS Television Network. (Originally Broadcast 10/4/2012)